Home / 10,455.14-15,680.27-6,239.57

Finding the Fourth Proportional to 10,455.14, 15,680.27 and 6,239.57

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Solution

The fourth proportional to 10,455.14, 15,680.27 and 6,239.57 is: 9,357.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.14 : 15,680.27 = 6,239.57 : x
  2. Step 2: Convert to fraction form
    10,455.14/15,680.27 = 6,239.57/x
  3. Step 3: Cross multiply
    10,455.14x = 15,680.27 × 6,239.57
  4. Step 4: Simplify right side
    10,455.14x = 97,838,079.48
  5. Step 5: Solve for x
    x = 97,838,079.48/10,455.14
  6. Step 6: Final answer
    x = 9,357.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.